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Merge pull request #33120 from nikhiljindal/ingressPanic

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Automatic merge from submit-queue

federation ingress controller: Fixing a panic by initialising the map before using it

Ref https://github.com/kubernetes/kubernetes/issues/32733#issuecomment-248428635

cc @kubernetes/sig-cluster-federation @quinton-hoole
This commit is contained in:
Kubernetes Submit Queue 2016-09-20 19:45:07 -07:00 committed by GitHub
commit fca40dcaff
1 changed files with 6 additions and 0 deletions
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6
federation/pkg/federation-controller/ingress/ingress_controller.go
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@ -548,6 +548,9 @@ func (ic *IngressController) updateClusterIngressUIDToMasters(cluster *federatio
}
if err == nil {
if masterCluster.Name != cluster.Name { // We're not the master, need to get in sync
if cluster.ObjectMeta.Annotations == nil {
cluster.ObjectMeta.Annotations = map[string]string{}
}
cluster.ObjectMeta.Annotations[uidAnnotationKey] = masterUID
if _, err = ic.federatedApiClient.Federation().Clusters().Update(cluster); err != nil {
glog.Errorf("Failed to add master ingress UID annotation (%q = %q) from master cluster %q to cluster %q, will try again later: %v", uidAnnotationKey, masterUID, masterCluster.Name, cluster.Name, err)
@ -561,6 +564,9 @@ func (ic *IngressController) updateClusterIngressUIDToMasters(cluster *federatio
} else {
glog.V(2).Infof("No master cluster found to source an ingress UID from for cluster %q. Attempting to elect new master cluster %q with ingress UID %q = %q", cluster.Name, cluster.Name, uidAnnotationKey, fallbackUID)
if fallbackUID != "" {
if cluster.ObjectMeta.Annotations == nil {
cluster.ObjectMeta.Annotations = map[string]string{}
}
cluster.ObjectMeta.Annotations[uidAnnotationKey] = fallbackUID
if _, err = ic.federatedApiClient.Federation().Clusters().Update(cluster); err != nil {
glog.Errorf("Failed to add ingress UID annotation (%q = %q) to cluster %q. No master elected. Will try again later: %v", uidAnnotationKey, fallbackUID, cluster.Name, err)